In my mind I’m kind of attributing it to the type of student (in a good way) that applies to it. Mine was WL as well. It was a target and he visited/interviewed early so this was a surprise. I imagine there will be a not-insignificant amount of movement on the WL. My kid had 5(!) waitlists - ALL desirable/equivalent schools, so we will be having serious discussions about how to manage them.